The reading passage argues that the hydrogen energy is very attractive source as an alternative to fossil fuel by listing three merits of it. However, the lecturer claims that the hydrogen energy is not that promising because it doesn't pass the test and he suggested the rebutting evidences of the merits.
To begin with, the lecturer contends that the hydrogen energy is not cost-effective source as huge barrier of electricity is required to produce the energy. Not only that, as controlling the weather is impossible, it is not very feasible to depend on sunlight to make it. Therefore, these findings efficiently contrast the reading passage's argument that the hydrogen energy is can be cheaper than fossil fuel thanks to the wide availability,
On top of that, the lecturer asserts that the energy is not so environmentally friendly because electricity energy has to be used to produce it. Thus, this point refute the reading passage's view point that the hydrogen energy is not is harmful to nature because it didn't make any harmful emission or by-product like other renewable sources.
Furthermore, the lecturer goes on to say that it is hard to store or transport the hydrogen energy source as converting the source to liquid or gas is very difficult, and the volatile form of it can be very dangerous. In addition, the soli form of it made alloy technology is too heavy to transport freely. These facts contract the reading passage's view point that the hydrogen energy source is easy to save or transport.